How To Fix FIN_FB_RECON355 - Duplicate entry in table BSAS

SAP Error Message - Details

• Message type: E = Error

• Message class: FIN_FB_RECON - Conversion to S/4HANA: Reconciliation

• Message number: 355

• Message text: Duplicate entry in table BSAS

What causes this issue?

There are line items in table BSEG with duplicate entry in the index
table BSAS.

System Response

The system informs about this inconsistency which must be corrected in
your productive system before starting the data migration.

How to fix this error?

For more information, see
<DS:URLA.HTTPS://LAUNCHPAD.SUPPORT.SAP.COM/#/NOTES/2714344>SAP Note
2714344.</>

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FIN_FB_RECON355 - Duplicate entry in table BSAS ?

  The SAP error message FIN_FB_RECON355, which indicates a "Duplicate entry in table BSAS," typically arises during financial document processing, particularly when dealing with account balances or reconciliation tasks. The BSAS table in SAP is used to store line items for accounting documents, and a duplicate entry suggests that there is an attempt to insert or process a record that already exists in this table.
  Cause:
  
  Duplicate Document Posting: The most common cause is that a financial document has been posted more than once, leading to duplicate entries in the BSAS table.
  Data Migration Issues: If data has been migrated from another system or during a system upgrade, it may have resulted in duplicate entries.
  Incorrect Configuration: Configuration settings in the financial module may allow for duplicate entries under certain conditions.
  User Error: Manual entry errors or incorrect batch processing can also lead to duplicates.
  
  Solution:
  
  
  Identify Duplicate Entries:
  
  Use transaction codes like SE16 or SE11 to access the BSAS table and identify the duplicate entries. You can run a query to find records with the same document number, fiscal year, and other relevant fields.
  
  
  
  Delete or Correct Duplicates:
  
  If duplicates are found, you may need to delete or correct them. This can be done through transaction codes like FB08 (to reverse a document) or by using the appropriate correction transactions.
  Ensure that you have the necessary authorizations and that you follow your organization's data correction policies.
  
  
  
  Check for Configuration Issues:
  
  Review the configuration settings in the Financial Accounting (FI) module to ensure that they are set up correctly to prevent duplicate postings.
  
  
  
  Data Migration Review:
  
  If the issue arose after a data migration, review the migration process to ensure that it was executed correctly and that no duplicates were introduced.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Engage Technical Support:
  
  If the issue persists or if you are unsure about how to proceed, consider engaging your SAP technical support team or a consultant with expertise in SAP FI.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SE16/SE11: For table access.
  FB03: To display documents.
  FB08: To reverse documents.
  
  
  SAP Documentation: Review SAP documentation related to financial accounting and document management for best practices on handling duplicates.
  User Training: Ensure that users are trained on proper data entry procedures to minimize the risk of duplicate postings in the future.
  
  By following these steps, you should be able to resolve the FIN_FB_RECON355 error and prevent it from occurring in the future.